<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="6" >
           <!-- 搜索框 -->
           <el-input placeholder="请输入内容" v-model="queryGoodsInfo.query" clearable @clear="getGoodsList">
              <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
           </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addGood">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" width="95px" prop="goods_price"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="145px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="deleteGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryGoodsInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryGoodsInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
// a:调用接口，获取商品列表数据
// b:使用table表格加载列表数据
// c:格式化时间 c1：跳转到main.js
// d:完成删除商品功能
export default {
  data() {
    return {
      // a1:获取参数
      queryGoodsInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      goodsList: [],
      total: 0
    }
  },
  methods: {
    async getGoodsList() {
      // a3:调用接口
      const { data: res } = await this.$html.get('goods', { params: this.queryGoodsInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 分页配置方法
    handleSizeChange(newSize) {
      this.queryGoodsInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(currentNum) {
      this.queryGoodsInfo.pagenum = currentNum
      this.getGoodsList()
    },
    // d1：监听：删除商品按钮
    async deleteGoods(goodID) {
    // d2：弹出确认框
    const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
      confirmButtonText: '确定',
      cancelButtonText: '取消',
      type: 'warning'
    }).catch(err => err)

     if (confirmResult !== 'confirm') {
       return this.$message.info('已取消删除操作')
     }
     // d3:点击的是确认
     const { data: res } = await this.$html.delete(`goods/${goodID}`)
     if (res.meta.status !== 200) {
       return this.$message.error('删除商品失败！')
     }
     this.$message.success('删除商品成功！')
     this.getGoodsList()
    },
    // 添加商品
    addGood() {
      this.$router.push('goods/add')
    }
  },
 created() {
    // a2：调用方法
    this.getGoodsList()
  },
  computed: {

  }
}
</script>

<style lang="less" scoped>
.el-pagination {
  margin-top: 15px;
}
</style>